Occurs in Pinal County. Common in Arizona.
Chemical Formula: CuFeS2
Specific Gravity: 4.1-4.3
Chalcopyrite is the primary copper ore mineral in many Arizona copper mines, and its presence can define the economic viability of a copper deposit. It is often associated with other sulfide minerals, such as pyrite and bornite, as well as oxide minerals like malachite and azurite.